With men, the state of nature is not a state of peace, but war.

Both love of mankind, and respect for their rights are duties; the former however is only a conditional, the latter an unconditional, purely imperative duty, which he must be perfectly certain not to have transgressed who would give himself up to the secret emotions arising from benevolence.

Always treat people as ends in themselves, never as means to an end.

From such crooked wood as that which man is made of, nothing straight can be fashioned.

Maximum individuality within maximum community

Here I shall add that the concept of change, and with it the concept of motion, as change of place, is possible only through and in the representation of time. & Motion, for example, presupposes the perception of something movable. But space considered in itself contains nothing movable; consequently motion must be something which is found in space only through experience -in other words, is an empirical datum.

Happiness, though an indefinite concept, is the goal of all rational beings